Control device used for a computer motherboard on which a plurality of interface cards is inserted

BACKGROUND OF THE INVENTION

p-0002a) Field of the Invention

p-0003The present invention relates to a control device used for a computer motherboard on which a plurality of interface cards is inserted, and more particularly to a control device wherein an L-shape notch or a long strip of notch is opened on a standardized circuit motherboard to connect with a standardized PCI (Periphery Component Interconnect) interface short card or PCI interface long card, such that at least more than one interface short card or interface long card can be added more into a computer casing of standard height of 1U (1U is equal to 1.75 in) or 2U.

p-0004b) Description of the Prior Art

p-0005It is known that in an internal space of a conventional computer casing, especially of height of 2U, interface cards (or expansion cards) are all vertically inserted on a circuit motherboard. Therefore, the circuit motherboard has to be welded with more PCI slots (or ISA (Industry Standard Architecture) slots) to provide for insertion of the interface cards. However, as the PCI slots take large area on a surface of the circuit motherboard, number of interface cards to be inserted will be limited; and in the existing market, at most only four interface cards can be inserted. Therefore, how to utilize the internal space of the circuit motherboard and the computer casing for inserting more interface cards, by using the effective space sufficiently, is a technical issue to be pursued by the present invention.

SUMMARY OF THE INVENTION

p-0006The primary object of present invention is to provide a control device used for a computer motherboard on which a plurality of interface cards is inserted, wherein an L-shape notch is opened at a corner of a circuit motherboard, and a riser card is inserted on a PCI slot (or ISA slot) of the circuit motherboard, such that a standardized interface short card can be inserted horizontally into a bottommost slot of the riser card, and can be emplace horizontally into the L-shape notch to approach a same horizontal level as the circuit motherboard, thereby enabling a side surface of the riser card to be added with a plurality of slots for inserting a plurality of overlapped and parallel interface cards in a vertical space of a computer casing.

p-0007Another object of the present invention is to provide a control device used for a computer motherboard on which a plurality of interface cards is inserted, wherein a long strip of continuous notch is opened at a side of a circuit motherboard, and a riser card is inserted on a PCI slot (or ISA slot) of the circuit motherboard, such that a standardized interface long card can be inserted horizontally into a bottommost slot of the riser card, and can be emplace horizontally into the long strip of notch to approach a same horizontal level as the circuit motherboard, thereby enabling a side surface of the riser card to be added with a plurality of slots for inserting a plurality of overlapped and parallel interface cards in a vertical space of a computer casing.

p-0008To enable a further understanding of the said objectives and the technological methods of the invention herein, the brief description of the drawings below is followed by the detailed description of the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

p-0009<figref idrefs="DRAWINGS">FIG. 1</figref> shows an exploded view the present invention which is implemented to a PCI interface short card.

p-0010<figref idrefs="DRAWINGS">FIG. 2</figref> shows an exploded view of the present invention which is implemented to a PCI interface long card.

p-0011<figref idrefs="DRAWINGS">FIG. 3</figref> shows a perspective view of parts of <figref idrefs="DRAWINGS">FIG. 1</figref> which are assembled into a computer casing.

p-0012<figref idrefs="DRAWINGS">FIG. 4</figref> shows a perspective view of parts of <figref idrefs="DRAWINGS">FIG. 2</figref> which are assembled into a computer casing.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

p-0013Referring to <figref idrefs="DRAWINGS">FIG. 1</figref> and <figref idrefs="DRAWINGS">FIG. 2</figref>, the present invention is to provide a control device used for a computer motherboard on which a plurality of interface cards is inserted, including a circuit motherboard <b>20</b> which is connected and fixed on a bottom surface of a computer casing <b>10</b>, with an L-shape notch <b>22</b> being opened at a corner and a vertical slot <b>24</b> being welded on a side edge of the L-shape notch <b>22</b>; a riser card <b>40</b>, a side surface at a bottom end of which is welded with a transversal slot <b>42</b>, and a bottom end at a side of which is provided with a conduction pin <b>44</b> which inserted into the slot <b>24</b> of the circuit motherboard <b>20</b>, such that the riser card <b>40</b> can be positioned vertically on the circuit motherboard <b>20</b>; and a standardized interface short card <b>50</b>, an inner end of which is provided with a conduction pin <b>52</b> which is inserted into the transversal slot <b>42</b>, and primary area of which can be emplaced into the L-shape notch <b>22</b>, such that a surface of the standardized interface short card <b>50</b> can approach a same horizontal level as that of the circuit motherboard <b>20</b> (as shown in <figref idrefs="DRAWINGS">FIG. 3</figref>).

p-0014Referring to <figref idrefs="DRAWINGS">FIG. 1</figref>, a side surface above the transversal slot <b>42</b> of the riser card <b>40</b> is welded respectively with a plurality of transversal slots <b>45</b>, <b>46</b>, <b>47</b>. Conduction pins <b>611</b>, <b>621</b>, <b>631</b> of a plurality of standardized interface long cards <b>61</b>, <b>62</b>, <b>63</b>, are inserted respectively into the plural transversal slots <b>45</b>, <b>46</b>, <b>47</b>, such that the plural interface long cards <b>61</b>, <b>62</b>, <b>63</b> can be overlapped with and parallel to one another and be located above the standardized interface short card <b>50</b>, as well as be located in an internal space of the computer casing <b>10</b>.

p-0015Referring to <figref idrefs="DRAWINGS">FIG. 1</figref>, the computer casing <b>10</b> is especially provided with the following parts: <ul><li id="ul0001-0001" num="0000"><ul><li id="ul0002-0001" num="0015">(a) An I/O board <b>12</b>, which is provided with an I/O connection interface and is located at a side of the computer casing <b>10</b> to serve as a connection interface of I/O;</li><li id="ul0002-0002" num="0016">(b) A frame <b>13</b>, which is provided with a ventilation hole <b>131</b> and is located in the internal space of the computer casing <b>10</b>; and a connection element <b>70</b>, which is provided with a vertical board <b>72</b> for connecting and fixing the riser card <b>40</b>, with a front connection end <b>71</b> of the connection element <b>70</b> being screwed on the frame <b>13</b>, and a rear connection end <b>73</b> being screwed on the I/O board <b>12</b>.</li></ul></li></ul>

p-0016The slots <b>24</b> of the circuit motherboard <b>20</b> are divided into a left and a right set. The conduction pins <b>44</b> at the bottom end at the side of the riser card <b>40</b> are divided into a left and a right set, and the two sets of conduction pins <b>44</b> are inserted into the two sets of slots <b>24</b>.

p-0017Height of the computer casing <b>10</b> is standardized height of 2U.

p-0018Referring to <figref idrefs="DRAWINGS">FIG. 2</figref> and <figref idrefs="DRAWINGS">FIG. 4</figref>, it shows another embodiment of the present invention, including a circuit motherboard <b>20</b>′, which is connected and fixed on a bottom surface of a computer casing <b>10</b>, and a side of which is formed with a long strip of continuous notch <b>22</b>′, with a side edge of the long strip of notch <b>22</b>′ being welded with a vertical slot <b>24</b>′; a riser card <b>40</b>, a side surface at a bottom end of which is welded with a transversal slot <b>42</b>, and a bottom end at a side of which is provided with a conduction pin <b>44</b> which is inserted into the slot <b>24</b>′ of the circuit motherboard <b>20</b>′, such that the riser card <b>40</b> can be positioned vertically on the circuit motherboard <b>20</b>′; and a full length, full height, standardized interface long card <b>50</b>′, an inner end of which is provided with a conduction pin <b>52</b>′, and primary area of which can be emplaced in the long strip of notch <b>22</b>′, such that a surface of the standardized interface long card <b>50</b>′ can approach to a same horizontal level as that of the circuit motherboard <b>20</b>′.

p-0019Referring to <figref idrefs="DRAWINGS">FIG. 1</figref>, an L-shape notch <b>22</b> is opened at a corner of a circuit motherboard <b>20</b>. Size of the L-shape notch <b>22</b> can exactly provide for emplacement of a standardized interface short card <b>50</b> (PCI Express Card Low Profile Half Length) which is provided with length of about 170 mm, and maximum width of about 111.2 mm.

p-0020A side end of the interface short card <b>50</b> is provided with a conduction pin <b>52</b> which can be exactly inserted into a transversal slot <b>42</b> at a bottommost of a riser card <b>40</b>, so as to position the interface short card <b>50</b> into the transversal slot <b>42</b> for forming electrical connection, thereby accomplishing an extraordinary function; that is, a surface of the interface short card <b>50</b> after being positioned approaches to a same horizontal level as that of the circuit motherboard <b>20</b>, wherein a side end of the interface short card <b>50</b> is provided with a through-hole <b>53</b>. Referring to <figref idrefs="DRAWINGS">FIG. 3</figref>, a region which is bounded by imaginary lines is the computer casing <b>10</b>, a side connection edge <b>54</b> of the interface short card <b>50</b> is closely next to a side board of the circuit motherboard <b>20</b>, and a bolt <b>55</b> is screwed into the through-hole <b>53</b> and a pillar <b>57</b> which is positioned between a bottom board <b>14</b> and the interface short card <b>50</b>, so as to position the interface short card <b>50</b>, and fixedly connect the metallic bottom board <b>14</b> on a bottom surface of the computer casing <b>10</b>.

p-0021As the interface short card <b>50</b> and the circuit motherboard <b>20</b> approach to the same horizontal level, a side surface of the vertical riser card <b>40</b> can be provided with at least more than three PCI or ISA transversal slots <b>45</b>, <b>46</b>, <b>47</b>, which can be inserted with three full height, full length interface long cards <b>61</b>, <b>62</b>, <b>63</b>. These three interface long cards <b>61</b>, <b>62</b>, <b>63</b> are parallel to one another and are positioned at a space above the circuit motherboard <b>20</b> and the interface short card <b>50</b>. Therefore, by the present invention, one interface short card <b>50</b> and three interface long cards <b>61</b>, <b>62</b>, <b>63</b> can be positioned at the L-shape notch <b>22</b> of and the space above the circuit motherboard <b>20</b>, which utilizes sufficiently the space of the circuit motherboard <b>20</b> and the space above the circuit motherboard <b>20</b>, to cleverly configure with a plurality of interface cards.

p-0022Referring to <figref idrefs="DRAWINGS">FIG. 2</figref>, a long strip of notch <b>22</b>′ of a circuit motherboard <b>20</b>′ is in a shape of long strip, and the circuit motherboard <b>20</b>′ is removed with one CPU and related circuit layout from an original configuration of two CPUs, in order to lengthen the long strip of notch <b>22</b>′. A full length, full height, standardized interface long card <b>50</b>′ is provided with length of about 314 mm, and maximum width of about 107 mm. A conduction pin <b>52</b>′ of the interface long card <b>50</b>′ is inserted into the transversal slot <b>42</b>, which further positions the interface long card <b>50</b>′ into the long strip of notch <b>22</b>′, and enables a surface of the interface long card <b>50</b>′ to approach to a same horizontal level as that of the circuit motherboard <b>20</b>′.

p-0023Referring to <figref idrefs="DRAWINGS">FIG. 4</figref>, the bottom board <b>14</b> is provided with at least more than one insulation pillar <b>90</b>, and a top part <b>92</b> of which is abutted at a front end <b>51</b> of the interface long card <b>50</b>′, enabling the interface long card <b>50</b>′ to approach a same horizontal level as the circuit motherboard <b>20</b>′.

p-0024On the other hand, positioning plates <b>612</b>, <b>622</b>, <b>623</b> which are fixed at tail ends of the interface long cards <b>61</b>, <b>62</b>, <b>63</b> above the interface long card <b>50</b>′ are inserted into clipping slots of elastic members <b>85</b>. As the elastic members <b>85</b> are a conventional art and also a feature to be pursued by the present invention, further description is not needed. Furthermore, front ends of the four interface long cards <b>50</b>′, <b>61</b>, <b>62</b>, <b>63</b> are fixedly connected with metal covers <b>96</b> to correspond to long grooves <b>25</b>, <b>26</b>, <b>27</b>, <b>28</b> of an I/O board <b>12</b>. These covers <b>96</b> can be opened with all kinds of plugs or sockets (not shown in the drawing) of I/O interfaces to externally connect to a connection element.

p-0025Therefore, by the present invention, the interface long cards <b>50</b>′, <b>61</b>, <b>62</b>, <b>63</b> can be also emplaced into the long strip of notch <b>22</b>′, such that the internal space of the computer casing <b>10</b> can be installed with four interface long cards <b>50</b>′, <b>61</b>, <b>62</b>, <b>63</b> that are overlapped with and parallel to one another, which utilizes sufficiently the internal space of the computer casing <b>10</b> of height of 2U.

p-0026Accordingly, by the present invention, at least four interface long cards or interface short cards that are overlapped with and parallel to one another can be installed in a vertical space, thereby improving their functions of usage.

p-0027It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.